PCI: fix kabi change in struct pci_bus

hulk inclusion
category: bugfix
bugzilla: NA
CVE: NA

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Fix kabi change in struct pci_bus since the following patch.
12de28f380a9 ("PCI: add a member in 'struct pci_bus' to record the
original 'pci_ops'")

Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>